This item has fallen, and what was the low price before is now the main price. There may be outliers, but they're almost impossible to find and nowhere near as plentiful as those at this price. The links aren't in great supply, not because of any laziness with the proof, but because of the fact that this item is generally sold in a set. All the links that are sold at 2.33 are > 2 weeks old.

Links at 2 refined:

http://www.tf2outpost.com/trade/6745238 - Sold heaps for 2 ref

http://www.tf2outpost.com/trade/6670202 - Sold for 2 ref

http://www.tf2outpost.com/trade/5606712 - Offer of 2 ref (original trade from a month ago, recent offer of stated price, not sure if already sold)

http://www.tf2outpost.com/trade/6637715 - Sold for 2 ref

http://www.tf2outpost.com/trade/6369870 - Sold for 2 ref

These were the ones that I could find unsold for over the price(after looking through several pages on outpost, I couldn't find many selling for 2.33, further illustrating that the price has changed):

http://www.tf2outpost.com/trade/6885720 - Unsold for 2.33 ref

http://www.tf2outpost.com/trade/6835553 - Unsold for 2.66 ref

Anything lower than 2 ref gets dismissed out of hand:

http://www.tf2outpost.com/trade/6568307 - Rejected offer of 1.66

Despite the relative lack of links, this price represents what I could find on outpost and is a clear indication of what the market is at, and where both buyers and sellers are doing their business.

Let me know what you think :D